Create PluginMetricsProvider class.

chrome/browser/metrics/android_metrics_provider.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/metrics/android_metrics_provider.h"
 
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
@@ skipping 21 matching lines @@
 AndroidMetricsProvider::AndroidMetricsProvider(PrefService* local_state)
     : local_state_(local_state) {
   LogStabilityToPrefs();
 }
 
 AndroidMetricsProvider::~AndroidMetricsProvider() {
 }
 
 
 void AndroidMetricsProvider::ProvideStabilityMetrics(
-    metrics::SystemProfileProto_Stability* stability_proto) {
+    metrics::SystemProfileProto* system_profile_proto) {
   ConvertStabilityPrefsToHistograms();
 }
 
 void AndroidMetricsProvider::LogStabilityToPrefs() {
   // Track which Activities were launched by the user.
   // A 'launch' is defined as starting the Activity at least once during a
   // UMA session.  Multiple launches are counted only once since it is possible
   // for users to hop between Activities (e.g. entering and leaving Settings).
   const int launched =
       local_state_->GetInteger(prefs::kStabilityLaunchedActivityFlags);
@@ skipping 85 matching lines @@
 }
 
 // static
 void AndroidMetricsProvider::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterIntegerPref(prefs::kStabilityForegroundActivityType,
                                 ActivityTypeIds::ACTIVITY_NONE);
   registry->RegisterIntegerPref(prefs::kStabilityLaunchedActivityFlags, 0);
   registry->RegisterListPref(prefs::kStabilityLaunchedActivityCounts);
   registry->RegisterListPref(prefs::kStabilityCrashedActivityCounts);
 }